orcaflex-installation-analysis

name	orcaflex-installation-analysis
description	Create and analyze OrcaFlex models for offshore installation sequences including subsea structure lowering, pipeline installation, and crane operations. Generate models at multiple water depths and orientations for installation feasibility studies.
type	reference
version	1.0.0
updated	"2026-01-17T00:00:00.000Z"
category	engineering
triggers	["installation analysis","subsea installation","structure lowering","crane operation","installation sequence","depth variation","installation feasibility","heavy lift","payload handling"]
capabilities	[]
requires	[]
tags	[]
scripts_exempt	true

Orcaflex Installation Analysis

When to Use

• Subsea structure installation analysis
• Pipeline/umbilical installation sequences
• Heavy lift crane operations
• Installation depth variation studies
• Lowering phase analysis
• Splash zone analysis
• Installation feasibility assessment
• Crane wire and sling configuration

Prerequisites

• OrcaFlex license (for simulation)
• Python environment with digitalmodel package installed
• Reference model files (.yml format recommended)
• Reference elevation configuration

Python API

Generate Installation Depth Models

from digitalmodel.orcaflex.orcaflex_installation import OrcInstallation

# Initialize
installer = OrcInstallation()

# Configuration for depth variation
cfg = {
    "structure": {
        "BaseFile": "reference.yml",

*See sub-skills for full details.*
### Simple Depth Model Generation

```python
from digitalmodel.orcaflex.orcaflex_installation import OrcInstallation

installer = OrcInstallation()

# Simpler configuration
cfg = {
    "reference_elevation_file": "models/reference.yml",
    "structure": "Subsea_Template",
    "masterlink": "Lifting_Point",

*See sub-skills for full details.*
### With Structure Orientation

```python
from digitalmodel.orcaflex.orcaflex_installation import OrcInstallation

installer = OrcInstallation()

# This generates:
# 1. Base model at each depth
# 2. Orientation variant (rotation about Z)
cfg = {
    "structure": {

*See sub-skills for full details.*



- [orcaflex-modeling](../orcaflex-modeling/SKILL.md) - Run OrcaFlex simulations
- [orcaflex-post-processing](../orcaflex-post-processing/SKILL.md) - Extract results
- [orcaflex-static-debug](../orcaflex-static-debug/SKILL.md) - Debug convergence issues
- [orcaflex-line-wizard](../orcaflex-line-wizard/SKILL.md) - Configure line properties



- OrcaFlex Installation Analysis: Orcina Documentation
- DNV-RP-H103: Modelling  Analysis of Marine Operations
- API RP 2A: Planning, Designing  Constructing Fixed Offshore Platforms
- Source: `src/digitalmodel/modules/orcaflex/orcaflex_installation.py`



- [Basic Installation Depth Study (+)](basic-installation-depth-study/SKILL.md)
- [Model Preparation (+)](model-preparation/SKILL.md)



- [Version Metadata](version-metadata/SKILL.md)
- [[] - -01-](--01-/SKILL.md)
- [Installation  Workflow](installation-sequence-workflow/SKILL.md)
- [Output File Structure](output-file-structure/SKILL.md)
- [Reference Elevation File (+)](reference-elevation-file/SKILL.md)
- [Integration  Universal Runner](integration--universal-runner/SKILL.md)
- [ Splash Zone Analysis (+)](-splash-zone-analysis/SKILL.md)
- [Post-Processing Installation Results](post-processing-installation-results/SKILL.md)
- [Common Errors  Fixes (+)](common-errors--fixes/SKILL.md)